106 



Bulletin of the University of Texas 



variously colored. This genus comprises more species than 

 any other, some 600 having -already been described. 



1. Leaves 6-7 lobed, the margins of the lobe* 



sharply serrate 1. C. Apiifolia. 



2. Leaves variously notched, toothed or serrate, 

 sometimes 3 lobed at the apex. 



a. Leaves broadest above the middle. 



(1) Leaves entire at base, serrate above the 

 middle, some of them 3 lobed at the 



apex; fruit scarlet 2. C. spathulata. 



(2) Leaves entire at base, serrate toward 



the apex; fruit green tinged with red. . 3. C. edita. 



(3) Leaves entire at base, serrate above the 

 middle, not lobed; fruit blue or blue 



black 4. C. brachycantha. 



(4) Leaves oval to obovate; fruit longer 

 than broad, bright canary yellow, 1/3'- 



y 2 ' long 5. C. Brazoria. 



(5) Leaves elliptical toothed or serrate 

 above the middle; fruit bright red 



dotted with pale spots, ripening in May 6. C. aestlvales. 



(6) Leaves ovate to oblong ovate, some- 

 times 3-lobed toward the apex; fruit 

 scarlet or orange, ripening in the 



autumn, Vs'- 1 /*' in diameter 7. C. viridis. 



(7) Leaves oblong ovate to semiorbicular, 

 serrate above the middle; fruit dull 



orange, about %' in diameter 8. C. glabriscula. 



b. Leaves broadest at the base 9. C. Texana. 



1. Crataegus apiifolia Michx. Parsley Haw. A small 

 tree sometimes 20 high with a trunk diameter which may 

 reach 6 '-8' but is usually smaller. The branches spread at 

 right angles, forming a rather broad irregular crown. Branch- 

 lets armed with stout, straight, chestnut-brown spines which 

 are I'-li/o' long. Bark smooth and rather thin, gray in color. 

 Leaves broadly ovate to orbicular, somewhat heart-shaped at 

 the broad base, 5-7 lobed, the lobes sharply serrate 1'-!.%' 

 long 2/3'-li/>' broad, bright green above, pale below. FJowers 

 M>' in diameter borne in 10-12 flowered corymbs, stamens 20 

 anthers bright rose red. Fruit oblong to oval %' long, scarlet, 

 with 1-3 nutlets, often hanging on the tree until early winter. 



Southern Virginia to Florida -and west to Arkansas and 

 Texas. In Texas it extends to the Trinity Valley. 



